Equipotential bonding of non-electrical equipment (see Appendix B)
The following parts of non-electrical equipment shall be made equipotential with the non-current carrying conductive parts of electrical equipment:
a) the continuous metal water piping system of a building supplied with electric power;
b) the continuous metal waste water piping system of a building supplied with electric power;
c) the continuous metal gas piping system of a building supplied with electric power;
d) raised floors of conductive material with electrical wiring under the raised floor; and
e) the conductive metal parts of structures that livestock access.
Source: Rule 10-700, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please visit store.csagroup.org